Quote Originally Posted by Xavier_Firbold View Post
I'll genuinely be surprised if it's not as obvious as Golbez eventually consuming Zero and all the new spicy Aether we're feeding her and then using her to become Zeromus.

I don't have much faith in the writing being super surprising at this point.
There is the foreshadowing that when a voidsent eats someone the personality can mess them up so perhaps it could be Zero consuming Golbez, becoming unstable, and as result Zeromus.